EN
wanwei pva 24-99(l) & pva 100-72
piav qhia
saib tag
Cov tsos ntawm pva yog dawb flake, granular los yog powdery khoom (qee-alkali alcoholysis txheej txheem) los yog dawb flocculent khoom (high-alkali alcoholysis txheej txheem). nws yog ib hom dej-soluble polymer nrog daim ntawv thov dav, thiab nws qhov kev ua tau zoo yog nruab nrab ntawm cov yas thiab roj hmab. nws muaj qhov tshwj xeeb muaj zog adhesion, zaj duab xis yooj, roj ua haujlwm, kev ua haujlwm saum npoo, roj thaiv, hnav tsis kam thiab lwm yam.
cov ntaub ntawv technical
|
yam |
hydrolysis (mol%) |
viscosity (mpa.s) |
tsis hloov pauv (% ≤) |
tshauv (% ≤) |
ph (tus nqi) |
kev huv (% ≥) |
|
24-99 (l) |
99.0-100.0 Nws |
65.0-85.0 Nws |
≤ 7.0 |
≤1.0 |
5 ~ 7 |
≥93.5 |
pob
25 kg / hnab.
khaws cia
zam tiam los yog txuam nrog plua plav. coj kev ceev faj tiv thaiv cov kab mob zoo li qub, lub ntiaj teb / hauv av txhua yam khoom siv. zam kev sib cuag nrog cov khoom rhuab los yog molten. tsis txhob ua pa plua plav, pa taws lossis vapors los ntawm cov khoom cua sov. siv cov pa tso pa hauv zos hauv qhov chaw ua haujlwm. coj kev ceev faj tiv thaiv tshav ntuj ncaj qha thiab nag drenching thaum thauj. ua kom lub tsheb thauj mus los huv si. zam kev ntim khoom pov tseg thiab kom deb ntawm impurity.
